您要查找的是不是：
- Physicians who were on call for48 hours. 48小时随叫随到的医生们
- Alan was the vet on call last night. 艾伦是一名兽医，昨晚召之即来。
- Doctors are expected to be on call day and night. 医生日夜准备应诊看病。
- Doctor Liu is on call at all times. 不论什么时候刘医生随叫随到。
- on call fireman 兼职消防队员
- I'll be on call the night of the party. 在聚会的晚上我将随时听凭召唤。
- Processing message on call handling thread. 正在处理呼叫处理线程上的消息。
- Dr. Hale is on call at the hospital. 黑尔医生在医院里等待出诊。
- Aren't you scheduled to be on call? 你不是排好时间表随时待命的吗?
- Doctors should be on call at any hour. 医生应随时都能出诊。
- The doctors in our clinic are on call day and night. 无论白天黑夜,我们医务室的医生总是随叫随到。
- Nor the mumblings and shots that rise from dreams on call. 也不知道想有就有的梦中发生的含糊话语和枪击。
- Jim didn't have the money ready even though he knew the bill was on call. 尽管吉姆知道这账单必须即期偿付，但他没有准备好钱。
- That the telephone rings day and night because the doctor is always on call. 电话一天到晚响个不停因为大夫总是随叫随到，听候召唤的；
- Stay on one frequency and keep on calling. 在一个频率上坚持地呼叫（换句话说就是不要轻易扫地?）
- I also learned about the importance of having a doctor and dentist on call. 此行我还认识到旅馆或饭店配备有随叫随到的医生和牙医的重要性。
- Sorry, I am on call this afternoon. You can ask Jerry to go with you. 不好意思,我今天下午值班。你问问杰瑞。
- After your call is complete, we'll automatically turn on call waiting again. 在您电话打完后,我们会再次自动启用呼叫等待。
- In an emergency, you can reach an doctor or nurse through our on call facility. 如果出现紧急情况，你可以通过我们的呼叫设施通知医生或护士。
- This job requires that you remain on call for weekend shifts once per month. 这份工作要求你每个月必须轮班一次在周末随时待命。
